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[PATCH v3 09/10] ci: windows: Disabling write cache flushing during test 471+ messages / 3 participants [nested] [flat]
* [PATCH v3 09/10] ci: windows: Disabling write cache flushing during test @ 2023-08-07 23:56 Andres Freund <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Andres Freund @ 2023-08-07 23:56 UTC (permalink / raw) This has been measured to reduce windows test times by about 30s. --- .cirrus.tasks.yml | 6 ++++++ src/tools/ci/windows_write_cache.ps1 | 20 ++++++++++++++++++++ 2 files changed, 26 insertions(+) create mode 100644 src/tools/ci/windows_write_cache.ps1 diff --git a/.cirrus.tasks.yml b/.cirrus.tasks.yml index d1730ce08a8..360b1c775fd 100644 --- a/.cirrus.tasks.yml +++ b/.cirrus.tasks.yml @@ -547,6 +547,12 @@ task: setup_additional_packages_script: | REM choco install -y --no-progress ... + # Define the write cache to be power protected. This reduces the rate of + # cache flushes, which seems to help metadata heavy workloads on NTFS. We're + # just testing here anyway, so ... + change_write_caching_script: + - powershell src/tools/ci/windows_write_cache.ps1 2>&1 + setup_hosts_file_script: | echo 127.0.0.1 pg-loadbalancetest >> c:\Windows\System32\Drivers\etc\hosts echo 127.0.0.2 pg-loadbalancetest >> c:\Windows\System32\Drivers\etc\hosts diff --git a/src/tools/ci/windows_write_cache.ps1 b/src/tools/ci/windows_write_cache.ps1 new file mode 100644 index 00000000000..5c67b3ce54b --- /dev/null +++ b/src/tools/ci/windows_write_cache.ps1 @@ -0,0 +1,20 @@ +# Define the write cache to be power protected. This reduces the rate of cache +# flushes, which seems to help metadata heavy workloads on NTFS. We're just +# testing here anyway, so ... +# +# Let's do so for all disks, this could be useful beyond cirrus-ci. + +Set-Location "HKLM:/SYSTEM/CurrentControlSet/Enum/SCSI"; + +Get-ChildItem -Path "*/*" | foreach-object { + Push-Location; + cd /$_; + pwd; + cd 'Device Parameters'; + if (!(Test-Path -Path "Disk")) { + New-Item -Path "Disk"; + } + + Set-ItemProperty -Path Disk -Type DWord -name CacheIsPowerProtected -Value 1; + Pop-Location; +} -- 2.38.0 --uh2yukyzfvojbe2k Content-Type: text/x-diff; charset=us-ascii Content-Disposition: attachment; filename="v3-0010-regress-Check-for-postgres-startup-completion-mor.patch" ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v1 6/9] ci: windows: Disabling write cache flushing during test @ 2023-08-07 23:56 Andres Freund <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Andres Freund @ 2023-08-07 23:56 UTC (permalink / raw) This has been measured to reduce windows test times by about 30s. --- .cirrus.yml | 2 ++ src/tools/ci/windows_write_cache.ps1 | 3 +++ 2 files changed, 5 insertions(+) create mode 100644 src/tools/ci/windows_write_cache.ps1 diff --git a/.cirrus.yml b/.cirrus.yml index 35ef9c97211..ef825485826 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -559,6 +559,8 @@ task: setup_additional_packages_script: | REM choco install -y --no-progress ... + change_write_caching_script: powershell src/tools/ci/windows_write_cache.ps1 + setup_hosts_file_script: | echo 127.0.0.1 pg-loadbalancetest >> c:\Windows\System32\Drivers\etc\hosts echo 127.0.0.2 pg-loadbalancetest >> c:\Windows\System32\Drivers\etc\hosts diff --git a/src/tools/ci/windows_write_cache.ps1 b/src/tools/ci/windows_write_cache.ps1 new file mode 100644 index 00000000000..9c52bc886d4 --- /dev/null +++ b/src/tools/ci/windows_write_cache.ps1 @@ -0,0 +1,3 @@ +Get-ItemProperty -path "HKLM:/SYSTEM/CurrentControlSet/Enum/SCSI/*/*/Device Parameters/Disk" -name CacheIsPowerProtected +Set-ItemProperty -path "HKLM:/SYSTEM/CurrentControlSet/Enum/SCSI/*/*/Device Parameters/Disk" -name CacheIsPowerProtected -Value 0 +Get-ItemProperty -path "HKLM:/SYSTEM/CurrentControlSet/Enum/SCSI/*/*/Device Parameters/Disk" -name CacheIsPowerProtected -- 2.38.0 --uu4yojthqnm7ulmd Content-Type: text/x-diff; charset=us-ascii Content-Disposition: attachment; filename="v1-0007-regress-Check-for-postgres-startup-completion-mor.patch" ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v1 6/9] ci: windows: Disabling write cache flushing during test @ 2023-08-07 23:56 Andres Freund <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Andres Freund @ 2023-08-07 23:56 UTC (permalink / raw) This has been measured to reduce windows test times by about 30s. --- .cirrus.yml | 2 ++ src/tools/ci/windows_write_cache.ps1 | 3 +++ 2 files changed, 5 insertions(+) create mode 100644 src/tools/ci/windows_write_cache.ps1 diff --git a/.cirrus.yml b/.cirrus.yml index 35ef9c97211..ef825485826 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -559,6 +559,8 @@ task: setup_additional_packages_script: | REM choco install -y --no-progress ... + change_write_caching_script: powershell src/tools/ci/windows_write_cache.ps1 + setup_hosts_file_script: | echo 127.0.0.1 pg-loadbalancetest >> c:\Windows\System32\Drivers\etc\hosts echo 127.0.0.2 pg-loadbalancetest >> c:\Windows\System32\Drivers\etc\hosts diff --git a/src/tools/ci/windows_write_cache.ps1 b/src/tools/ci/windows_write_cache.ps1 new file mode 100644 index 00000000000..9c52bc886d4 --- /dev/null +++ b/src/tools/ci/windows_write_cache.ps1 @@ -0,0 +1,3 @@ +Get-ItemProperty -path "HKLM:/SYSTEM/CurrentControlSet/Enum/SCSI/*/*/Device Parameters/Disk" -name CacheIsPowerProtected +Set-ItemProperty -path "HKLM:/SYSTEM/CurrentControlSet/Enum/SCSI/*/*/Device Parameters/Disk" -name CacheIsPowerProtected -Value 0 +Get-ItemProperty -path "HKLM:/SYSTEM/CurrentControlSet/Enum/SCSI/*/*/Device Parameters/Disk" -name CacheIsPowerProtected -- 2.38.0 --uu4yojthqnm7ulmd Content-Type: text/x-diff; charset=us-ascii Content-Disposition: attachment; filename="v1-0007-regress-Check-for-postgres-startup-completion-mor.patch" ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 09/10] ci: windows: Disabling write cache flushing during test @ 2023-08-07 23:56 Andres Freund <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Andres Freund @ 2023-08-07 23:56 UTC (permalink / raw) This has been measured to reduce windows test times by about 30s. --- .cirrus.tasks.yml | 6 ++++++ src/tools/ci/windows_write_cache.ps1 | 20 ++++++++++++++++++++ 2 files changed, 26 insertions(+) create mode 100644 src/tools/ci/windows_write_cache.ps1 diff --git a/.cirrus.tasks.yml b/.cirrus.tasks.yml index d1730ce08a8..360b1c775fd 100644 --- a/.cirrus.tasks.yml +++ b/.cirrus.tasks.yml @@ -547,6 +547,12 @@ task: setup_additional_packages_script: | REM choco install -y --no-progress ... + # Define the write cache to be power protected. This reduces the rate of + # cache flushes, which seems to help metadata heavy workloads on NTFS. We're + # just testing here anyway, so ... + change_write_caching_script: + - powershell src/tools/ci/windows_write_cache.ps1 2>&1 + setup_hosts_file_script: | echo 127.0.0.1 pg-loadbalancetest >> c:\Windows\System32\Drivers\etc\hosts echo 127.0.0.2 pg-loadbalancetest >> c:\Windows\System32\Drivers\etc\hosts diff --git a/src/tools/ci/windows_write_cache.ps1 b/src/tools/ci/windows_write_cache.ps1 new file mode 100644 index 00000000000..5c67b3ce54b --- /dev/null +++ b/src/tools/ci/windows_write_cache.ps1 @@ -0,0 +1,20 @@ +# Define the write cache to be power protected. This reduces the rate of cache +# flushes, which seems to help metadata heavy workloads on NTFS. We're just +# testing here anyway, so ... +# +# Let's do so for all disks, this could be useful beyond cirrus-ci. + +Set-Location "HKLM:/SYSTEM/CurrentControlSet/Enum/SCSI"; + +Get-ChildItem -Path "*/*" | foreach-object { + Push-Location; + cd /$_; + pwd; + cd 'Device Parameters'; + if (!(Test-Path -Path "Disk")) { + New-Item -Path "Disk"; + } + + Set-ItemProperty -Path Disk -Type DWord -name CacheIsPowerProtected -Value 1; + Pop-Location; +} -- 2.38.0 --uh2yukyzfvojbe2k Content-Type: text/x-diff; charset=us-ascii Content-Disposition: attachment; filename="v3-0010-regress-Check-for-postgres-startup-completion-mor.patch" ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v1 6/9] ci: windows: Disabling write cache flushing during test @ 2023-08-07 23:56 Andres Freund <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Andres Freund @ 2023-08-07 23:56 UTC (permalink / raw) This has been measured to reduce windows test times by about 30s. --- .cirrus.yml | 2 ++ src/tools/ci/windows_write_cache.ps1 | 3 +++ 2 files changed, 5 insertions(+) create mode 100644 src/tools/ci/windows_write_cache.ps1 diff --git a/.cirrus.yml b/.cirrus.yml index 35ef9c97211..ef825485826 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -559,6 +559,8 @@ task: setup_additional_packages_script: | REM choco install -y --no-progress ... + change_write_caching_script: powershell src/tools/ci/windows_write_cache.ps1 + setup_hosts_file_script: | echo 127.0.0.1 pg-loadbalancetest >> c:\Windows\System32\Drivers\etc\hosts echo 127.0.0.2 pg-loadbalancetest >> c:\Windows\System32\Drivers\etc\hosts diff --git a/src/tools/ci/windows_write_cache.ps1 b/src/tools/ci/windows_write_cache.ps1 new file mode 100644 index 00000000000..9c52bc886d4 --- /dev/null +++ b/src/tools/ci/windows_write_cache.ps1 @@ -0,0 +1,3 @@ +Get-ItemProperty -path "HKLM:/SYSTEM/CurrentControlSet/Enum/SCSI/*/*/Device Parameters/Disk" -name CacheIsPowerProtected +Set-ItemProperty -path "HKLM:/SYSTEM/CurrentControlSet/Enum/SCSI/*/*/Device Parameters/Disk" -name CacheIsPowerProtected -Value 0 +Get-ItemProperty -path "HKLM:/SYSTEM/CurrentControlSet/Enum/SCSI/*/*/Device Parameters/Disk" -name CacheIsPowerProtected -- 2.38.0 --uu4yojthqnm7ulmd Content-Type: text/x-diff; charset=us-ascii Content-Disposition: attachment; filename="v1-0007-regress-Check-for-postgres-startup-completion-mor.patch" ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v53 1/7] Introduce an option to make logical replication database specific. @ 2026-04-04 15:16 Antonin Houska <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Antonin Houska @ 2026-04-04 15:16 UTC (permalink / raw) By default, the logical decoding assumes access to shared catalogs, so the snapshot builder needs to consider cluster-wide XIDs during startup. That in turn means that, if any transaction is already running (and has XID assigned), the snapshot builder needs to wait for its completion, as it does not know if that transaction performed catalog changes earlier. Possible problem with this concept is that if REPACK (CONCURRENTLY) is running in some database, backends running the same command in other databases get stuck until the first one has committed. Thus only as single backend in the cluster can run REPACK (CONCURRENTLY) at any time. Likewise, REPACK (CONCURRENTLY) can block walsenders starting on behalf of subscriptions throughout the cluster. This patch adds a new option to logical replication output plugin, to declare that it does not use shared catalogs (i.e. catalogs that can be changed by transactions running in other databases in the cluster). In that case, no snapshot the backend will use during the decoding needs to contain information about transactions running in other databases. Thus the snapshot builder only needs to wait for completion of transactions in the current database. Currently we only use this option in the REPACK background worker. It could possibly be used in the plugin for logical replication too, however that would need thorough analysis of that plugin. The patch bumps WAL version number, due to a new field in xl_running_xacts. --- contrib/pg_visibility/pg_visibility.c | 4 +- doc/src/sgml/logicaldecoding.sgml | 4 ++ src/backend/access/index/genam.c | 8 +++ src/backend/access/rmgrdesc/standbydesc.c | 2 + src/backend/access/transam/xlog.c | 2 +- src/backend/access/transam/xlogfuncs.c | 2 +- src/backend/postmaster/bgwriter.c | 2 +- src/backend/replication/logical/decode.c | 8 ++- src/backend/replication/logical/logical.c | 3 ++ src/backend/replication/logical/snapbuild.c | 59 ++++++++++++++++++--- src/backend/replication/slot.c | 2 +- src/backend/storage/ipc/procarray.c | 23 +++++++- src/backend/storage/ipc/standby.c | 14 ++++- src/include/access/genam.h | 7 +++ src/include/access/xlog_internal.h | 2 +- src/include/replication/output_plugin.h | 1 + src/include/replication/snapbuild.h | 3 +- src/include/storage/procarray.h | 2 +- src/include/storage/standby.h | 3 +- src/include/storage/standbydefs.h | 1 + 20 files changed, 131 insertions(+), 21 deletions(-) diff --git a/contrib/pg_visibility/pg_visibility.c b/contrib/pg_visibility/pg_visibility.c index dfab0b64cf5..d564bd2a00c 100644 --- a/contrib/pg_visibility/pg_visibility.c +++ b/contrib/pg_visibility/pg_visibility.c @@ -621,7 +621,7 @@ GetStrictOldestNonRemovableTransactionId(Relation rel) else if (rel == NULL || rel->rd_rel->relisshared) { /* Shared relation: take into account all running xids */ - runningTransactions = GetRunningTransactionData(); + runningTransactions = GetRunningTransactionData(InvalidOid); LWLockRelease(ProcArrayLock); LWLockRelease(XidGenLock); return runningTransactions->oldestRunningXid; @@ -632,7 +632,7 @@ GetStrictOldestNonRemovableTransactionId(Relation rel) * Normal relation: take into account xids running within the current * database */ - runningTransactions = GetRunningTransactionData(); + runningTransactions = GetRunningTransactionData(InvalidOid); LWLockRelease(ProcArrayLock); LWLockRelease(XidGenLock); return runningTransactions->oldestDatabaseRunningXid; diff --git a/doc/src/sgml/logicaldecoding.sgml b/doc/src/sgml/logicaldecoding.sgml index 6dc49108997..28089d1053c 100644 --- a/doc/src/sgml/logicaldecoding.sgml +++ b/doc/src/sgml/logicaldecoding.sgml @@ -959,6 +959,7 @@ typedef struct OutputPluginOptions { OutputPluginOutputType output_type; bool receive_rewrites; + bool need_shared_catalogs; } OutputPluginOptions; </programlisting> <literal>output_type</literal> has to either be set to @@ -969,6 +970,9 @@ typedef struct OutputPluginOptions also be called for changes made by heap rewrites during certain DDL operations. These are of interest to plugins that handle DDL replication, but they require special handling. + <literal>need_shared_catalogs</literal> can be set to false if you are + sure the plugin functions do not access shared system catalogs. It can + speed up creation of replication slots that use this plugin. </para> <para> diff --git a/src/backend/access/index/genam.c b/src/backend/access/index/genam.c index 1408989c568..44df2605068 100644 --- a/src/backend/access/index/genam.c +++ b/src/backend/access/index/genam.c @@ -394,6 +394,14 @@ systable_beginscan(Relation heapRelation, SysScanDesc sysscan; Relation irel; + /* + * If this backend promised that it won't access shared catalogs during + * logical decoding, this seems to be the right place to check. + */ + Assert(!HistoricSnapshotActive() || + accessSharedCatalogsInDecoding || + !heapRelation->rd_rel->relisshared); + if (indexOK && !IgnoreSystemIndexes && !ReindexIsProcessingIndex(indexId)) diff --git a/src/backend/access/rmgrdesc/standbydesc.c b/src/backend/access/rmgrdesc/standbydesc.c index 0a291354ae2..685d1bdb024 100644 --- a/src/backend/access/rmgrdesc/standbydesc.c +++ b/src/backend/access/rmgrdesc/standbydesc.c @@ -41,6 +41,8 @@ standby_desc_running_xacts(StringInfo buf, xl_running_xacts *xlrec) for (i = 0; i < xlrec->subxcnt; i++) appendStringInfo(buf, " %u", xlrec->xids[xlrec->xcnt + i]); } + + appendStringInfo(buf, "; dbid: %u", xlrec->dbid); } void diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c index 9e8999bbb61..1a6c1456d2c 100644 --- a/src/backend/access/transam/xlog.c +++ b/src/backend/access/transam/xlog.c @@ -7731,7 +7731,7 @@ CreateCheckPoint(int flags) * recovery we don't need to write running xact data. */ if (!shutdown && XLogStandbyInfoActive()) - LogStandbySnapshot(); + LogStandbySnapshot(InvalidOid); START_CRIT_SECTION(); diff --git a/src/backend/access/transam/xlogfuncs.c b/src/backend/access/transam/xlogfuncs.c index 65bbaeda59c..0f5979691e6 100644 --- a/src/backend/access/transam/xlogfuncs.c +++ b/src/backend/access/transam/xlogfuncs.c @@ -245,7 +245,7 @@ pg_log_standby_snapshot(PG_FUNCTION_ARGS) (errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE), errmsg("pg_log_standby_snapshot() can only be used if \"wal_level\" >= \"replica\""))); - recptr = LogStandbySnapshot(); + recptr = LogStandbySnapshot(InvalidOid); /* * As a convenience, return the WAL location of the last inserted record diff --git a/src/backend/postmaster/bgwriter.c b/src/backend/postmaster/bgwriter.c index 1d8947774a9..a30de4262eb 100644 --- a/src/backend/postmaster/bgwriter.c +++ b/src/backend/postmaster/bgwriter.c @@ -289,7 +289,7 @@ BackgroundWriterMain(const void *startup_data, size_t startup_data_len) if (now >= timeout && last_snapshot_lsn <= GetLastImportantRecPtr()) { - last_snapshot_lsn = LogStandbySnapshot(); + last_snapshot_lsn = LogStandbySnapshot(InvalidOid); last_snapshot_ts = now; } } diff --git a/src/backend/replication/logical/decode.c b/src/backend/replication/logical/decode.c index 57aaef57c61..4299d0bc867 100644 --- a/src/backend/replication/logical/decode.c +++ b/src/backend/replication/logical/decode.c @@ -381,7 +381,13 @@ standby_decode(LogicalDecodingContext *ctx, XLogRecordBuffer *buf) { xl_running_xacts *running = (xl_running_xacts *) XLogRecGetData(r); - SnapBuildProcessRunningXacts(builder, buf->origptr, running); + + /* + * If the plugin does not access shared catalogs, only keep + * track of transactions in the current database. + */ + SnapBuildProcessRunningXacts(builder, buf->origptr, running, + !ctx->options.need_shared_catalogs); /* * Abort all transactions that we keep track of, that are diff --git a/src/backend/replication/logical/logical.c b/src/backend/replication/logical/logical.c index f20d0c542f3..8ceaf64d164 100644 --- a/src/backend/replication/logical/logical.c +++ b/src/backend/replication/logical/logical.c @@ -285,6 +285,9 @@ StartupDecodingContext(List *output_plugin_options, ctx->write = do_write; ctx->update_progress = update_progress; + /* Assume shared catalog access. The startup callback can change it. */ + ctx->options.need_shared_catalogs = true; + ctx->output_plugin_options = output_plugin_options; ctx->fast_forward = fast_forward; diff --git a/src/backend/replication/logical/snapbuild.c b/src/backend/replication/logical/snapbuild.c index b4269a3b102..a6738e120c7 100644 --- a/src/backend/replication/logical/snapbuild.c +++ b/src/backend/replication/logical/snapbuild.c @@ -125,6 +125,7 @@ #include <sys/stat.h> #include <unistd.h> +#include "access/genam.h" #include "access/heapam_xlog.h" #include "access/transam.h" #include "access/xact.h" @@ -154,6 +155,14 @@ static ResourceOwner SavedResourceOwnerDuringExport = NULL; static bool ExportInProgress = false; +/* + * If a backend is going to do logical decoding and the output plugin does + * not need to access shared catalogs, setting this variable to false can make + * the decoding startup faster. In particular, the backend will not need to + * wait for completion of already running transactions in other databases. + */ +bool accessSharedCatalogsInDecoding = true; + /* ->committed and ->catchange manipulation */ static void SnapBuildPurgeOlderTxn(SnapBuild *builder); @@ -170,7 +179,8 @@ static inline bool SnapBuildXidHasCatalogChanges(SnapBuild *builder, Transaction uint32 xinfo); /* xlog reading helper functions for SnapBuildProcessRunningXacts */ -static bool SnapBuildFindSnapshot(SnapBuild *builder, XLogRecPtr lsn, xl_running_xacts *running); +static bool SnapBuildFindSnapshot(SnapBuild *builder, XLogRecPtr lsn, + xl_running_xacts *running, bool db_specific); static void SnapBuildWaitSnapshot(xl_running_xacts *running, TransactionId cutoff); /* serialization functions */ @@ -1136,7 +1146,8 @@ SnapBuildXidHasCatalogChanges(SnapBuild *builder, TransactionId xid, * anymore. */ void -SnapBuildProcessRunningXacts(SnapBuild *builder, XLogRecPtr lsn, xl_running_xacts *running) +SnapBuildProcessRunningXacts(SnapBuild *builder, XLogRecPtr lsn, xl_running_xacts *running, + bool db_specific) { ReorderBufferTXN *txn; TransactionId xmin; @@ -1149,7 +1160,7 @@ SnapBuildProcessRunningXacts(SnapBuild *builder, XLogRecPtr lsn, xl_running_xact if (builder->state < SNAPBUILD_CONSISTENT) { /* returns false if there's no point in performing cleanup just yet */ - if (!SnapBuildFindSnapshot(builder, lsn, running)) + if (!SnapBuildFindSnapshot(builder, lsn, running, db_specific)) return; } else @@ -1166,8 +1177,14 @@ SnapBuildProcessRunningXacts(SnapBuild *builder, XLogRecPtr lsn, xl_running_xact * (see SnapBuildCommitTxn). Because of this, xmax can be lower than * xmin, which looks odd but is correct and actually more efficient, since * we hit fast paths in heapam_visibility.c. + * + * If database specific transaction info was used during startup, the info + * for the whole cluster can make xmin go backwards. That would be bad + * because we might no longer have older XIDs in ->committed. */ - builder->xmin = running->oldestRunningXid; + if (!db_specific || + NormalTransactionIdFollows(running->oldestRunningXid, builder->xmin)) + builder->xmin = running->oldestRunningXid; /* Remove transactions we don't need to keep track off anymore */ SnapBuildPurgeOlderTxn(builder); @@ -1182,7 +1199,11 @@ SnapBuildProcessRunningXacts(SnapBuild *builder, XLogRecPtr lsn, xl_running_xact * the record we're reading now. */ xmin = ReorderBufferGetOldestXmin(builder->reorder); - if (xmin == InvalidTransactionId) + + /* + * Like above, do not let slot xmin go backwards. + */ + if (xmin == InvalidTransactionId && !db_specific) xmin = running->oldestRunningXid; elog(DEBUG3, "xmin: %u, xmax: %u, oldest running: %u, oldest xmin: %u", builder->xmin, builder->xmax, running->oldestRunningXid, xmin); @@ -1238,7 +1259,8 @@ SnapBuildProcessRunningXacts(SnapBuild *builder, XLogRecPtr lsn, xl_running_xact * using the xl_running_xacts record. */ static bool -SnapBuildFindSnapshot(SnapBuild *builder, XLogRecPtr lsn, xl_running_xacts *running) +SnapBuildFindSnapshot(SnapBuild *builder, XLogRecPtr lsn, xl_running_xacts *running, + bool db_specific) { /* --- * Build catalog decoding snapshot incrementally using information about @@ -1265,6 +1287,25 @@ SnapBuildFindSnapshot(SnapBuild *builder, XLogRecPtr lsn, xl_running_xacts *runn * --- */ + if (db_specific) + { + /* + * If we must only keep track of transactions running in the current + * database, we need transaction info from exactly that database. + */ + if (running->dbid != MyDatabaseId) + { + LogStandbySnapshot(MyDatabaseId); + return false; + } + + /* + * We'd better be able to check during scan if the plugin does not + * lie. + */ + accessSharedCatalogsInDecoding = false; + } + /* * xl_running_xacts record is older than what we can use, we might not * have all necessary catalog rows anymore. @@ -1465,7 +1506,11 @@ SnapBuildWaitSnapshot(xl_running_xacts *running, TransactionId cutoff) */ if (!RecoveryInProgress()) { - LogStandbySnapshot(); + /* + * If the last transaction info was about specific database, so needs + * to be the next one - at least until we're in the CONSISTENT state. + */ + LogStandbySnapshot(running->dbid); } } diff --git a/src/backend/replication/slot.c b/src/backend/replication/slot.c index a9092fc2382..9533515a63b 100644 --- a/src/backend/replication/slot.c +++ b/src/backend/replication/slot.c @@ -1762,7 +1762,7 @@ ReplicationSlotReserveWal(void) XLogRecPtr flushptr; /* make sure we have enough information to start */ - flushptr = LogStandbySnapshot(); + flushptr = LogStandbySnapshot(InvalidOid); /* and make sure it's fsynced to disk */ XLogFlush(flushptr); diff --git a/src/backend/storage/ipc/procarray.c b/src/backend/storage/ipc/procarray.c index cc207cb56e3..92ed34128e5 100644 --- a/src/backend/storage/ipc/procarray.c +++ b/src/backend/storage/ipc/procarray.c @@ -2631,9 +2631,11 @@ ProcArrayInstallRestoredXmin(TransactionId xmin, PGPROC *proc) * * Note that if any transaction has overflowed its cached subtransactions * then there is no real need include any subtransactions. + * + * If 'dbid' is valid, only gather transactions running in that database. */ RunningTransactions -GetRunningTransactionData(void) +GetRunningTransactionData(Oid dbid) { /* result workspace */ static RunningTransactionsData CurrentRunningXactsData; @@ -2708,6 +2710,18 @@ GetRunningTransactionData(void) if (!TransactionIdIsValid(xid)) continue; + /* + * Filter by database OID if requested. + */ + if (OidIsValid(dbid)) + { + int pgprocno = arrayP->pgprocnos[index]; + PGPROC *proc = &allProcs[pgprocno]; + + if (proc->databaseId != dbid) + continue; + } + /* * Be careful not to exclude any xids before calculating the values of * oldestRunningXid and suboverflowed, since these are used to clean @@ -2758,6 +2772,12 @@ GetRunningTransactionData(void) PGPROC *proc = &allProcs[pgprocno]; int nsubxids; + /* + * Filter by database OID if requested. + */ + if (OidIsValid(dbid) && proc->databaseId != dbid) + continue; + /* * Save subtransaction XIDs. Other backends can't add or remove * entries while we're holding XidGenLock. @@ -2791,6 +2811,7 @@ GetRunningTransactionData(void) * increases if slots do. */ + CurrentRunningXacts->dbid = dbid; CurrentRunningXacts->xcnt = count - subcount; CurrentRunningXacts->subxcnt = subcount; CurrentRunningXacts->subxid_status = suboverflowed ? SUBXIDS_IN_SUBTRANS : SUBXIDS_IN_ARRAY; diff --git a/src/backend/storage/ipc/standby.c b/src/backend/storage/ipc/standby.c index de9092fdf5b..c653ea742bc 100644 --- a/src/backend/storage/ipc/standby.c +++ b/src/backend/storage/ipc/standby.c @@ -1188,6 +1188,14 @@ standby_redo(XLogReaderState *record) xl_running_xacts *xlrec = (xl_running_xacts *) XLogRecGetData(record); RunningTransactionsData running; + /* + * Records issued for specific database are not suitable for physical + * replication because that affects the whole cluster. In particular, + * the list of XID is probably incomplete here. + */ + if (OidIsValid(xlrec->dbid)) + return; + running.xcnt = xlrec->xcnt; running.subxcnt = xlrec->subxcnt; running.subxid_status = xlrec->subxid_overflow ? SUBXIDS_MISSING : SUBXIDS_IN_ARRAY; @@ -1277,11 +1285,12 @@ standby_redo(XLogReaderState *record) * as there's no independent knob to just enable logical decoding. For * details of how this is used, check snapbuild.c's introductory comment. * + * If 'dbid' is valid, only gather transactions running in that database. * * Returns the RecPtr of the last inserted record. */ XLogRecPtr -LogStandbySnapshot(void) +LogStandbySnapshot(Oid dbid) { XLogRecPtr recptr; RunningTransactions running; @@ -1314,7 +1323,7 @@ LogStandbySnapshot(void) * Log details of all in-progress transactions. This should be the last * record we write, because standby will open up when it sees this. */ - running = GetRunningTransactionData(); + running = GetRunningTransactionData(dbid); /* * GetRunningTransactionData() acquired ProcArrayLock, we must release it. @@ -1358,6 +1367,7 @@ LogCurrentRunningXacts(RunningTransactions CurrRunningXacts) xl_running_xacts xlrec; XLogRecPtr recptr; + xlrec.dbid = CurrRunningXacts->dbid; xlrec.xcnt = CurrRunningXacts->xcnt; xlrec.subxcnt = CurrRunningXacts->subxcnt; xlrec.subxid_overflow = (CurrRunningXacts->subxid_status != SUBXIDS_IN_ARRAY); diff --git a/src/include/access/genam.h b/src/include/access/genam.h index b69320a7fc8..c9a52277be1 100644 --- a/src/include/access/genam.h +++ b/src/include/access/genam.h @@ -136,6 +136,13 @@ typedef struct IndexOrderByDistance bool isnull; } IndexOrderByDistance; + +/* + * Keep track of whether logical decoding in this backend promised not to + * access shared catalogs, as a safety check. Somewhat misplaced, but ... + */ +extern bool accessSharedCatalogsInDecoding; + /* * generalized index_ interface routines (in indexam.c) */ diff --git a/src/include/access/xlog_internal.h b/src/include/access/xlog_internal.h index 10c18d39ff8..13ae3ad4fbb 100644 --- a/src/include/access/xlog_internal.h +++ b/src/include/access/xlog_internal.h @@ -32,7 +32,7 @@ /* * Each page of XLOG file has a header like this: */ -#define XLOG_PAGE_MAGIC 0xD11E /* can be used as WAL version indicator */ +#define XLOG_PAGE_MAGIC 0xD11F /* can be used as WAL version indicator */ typedef struct XLogPageHeaderData { diff --git a/src/include/replication/output_plugin.h b/src/include/replication/output_plugin.h index 842fcde67f9..917f3cff232 100644 --- a/src/include/replication/output_plugin.h +++ b/src/include/replication/output_plugin.h @@ -27,6 +27,7 @@ typedef struct OutputPluginOptions { OutputPluginOutputType output_type; bool receive_rewrites; + bool need_shared_catalogs; } OutputPluginOptions; /* diff --git a/src/include/replication/snapbuild.h b/src/include/replication/snapbuild.h index a22a83a2f23..d02530a912a 100644 --- a/src/include/replication/snapbuild.h +++ b/src/include/replication/snapbuild.h @@ -92,7 +92,8 @@ extern void SnapBuildProcessNewCid(SnapBuild *builder, TransactionId xid, XLogRecPtr lsn, xl_heap_new_cid *xlrec); extern void SnapBuildProcessRunningXacts(SnapBuild *builder, XLogRecPtr lsn, - xl_running_xacts *running); + xl_running_xacts *running, + bool db_specific); extern void SnapBuildSerializationPoint(SnapBuild *builder, XLogRecPtr lsn); extern bool SnapBuildSnapshotExists(XLogRecPtr lsn); diff --git a/src/include/storage/procarray.h b/src/include/storage/procarray.h index abdf021e66e..377b3060b9f 100644 --- a/src/include/storage/procarray.h +++ b/src/include/storage/procarray.h @@ -49,7 +49,7 @@ extern bool ProcArrayInstallImportedXmin(TransactionId xmin, VirtualTransactionId *sourcevxid); extern bool ProcArrayInstallRestoredXmin(TransactionId xmin, PGPROC *proc); -extern RunningTransactions GetRunningTransactionData(void); +extern RunningTransactions GetRunningTransactionData(Oid dbid); extern bool TransactionIdIsInProgress(TransactionId xid); extern TransactionId GetOldestNonRemovableTransactionId(Relation rel); diff --git a/src/include/storage/standby.h b/src/include/storage/standby.h index 6a314c693cd..8715c08e94f 100644 --- a/src/include/storage/standby.h +++ b/src/include/storage/standby.h @@ -126,6 +126,7 @@ typedef enum typedef struct RunningTransactionsData { + Oid dbid; /* only track xacts in this database */ int xcnt; /* # of xact ids in xids[] */ int subxcnt; /* # of subxact ids in xids[] */ subxids_array_status subxid_status; @@ -143,7 +144,7 @@ typedef RunningTransactionsData *RunningTransactions; extern void LogAccessExclusiveLock(Oid dbOid, Oid relOid); extern void LogAccessExclusiveLockPrepare(void); -extern XLogRecPtr LogStandbySnapshot(void); +extern XLogRecPtr LogStandbySnapshot(Oid dbid); extern void LogStandbyInvalidations(int nmsgs, SharedInvalidationMessage *msgs, bool relcacheInitFileInval); diff --git a/src/include/storage/standbydefs.h b/src/include/storage/standbydefs.h index 231d251fd51..e75b7078766 100644 --- a/src/include/storage/standbydefs.h +++ b/src/include/storage/standbydefs.h @@ -46,6 +46,7 @@ typedef struct xl_standby_locks */ typedef struct xl_running_xacts { + Oid dbid; /* only track xacts in this database */ int xcnt; /* # of xact ids in xids[] */ int subxcnt; /* # of subxact ids in xids[] */ bool subxid_overflow; /* snapshot overflowed, subxids missing */ -- 2.47.3 --qr3jlalmmcpkiodg Content-Type: text/x-diff; charset=utf-8 Content-Disposition: attachment; filename="v53-0002-Fix-a-few-problems-in-index-build-progress-repor.patch" ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 4 files changed, 20 insertions(+), 354 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..17ad8eeb838 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --ZcI1PtyEAe3VcVeQ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v5-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/connectdb.c | 4 +- src/bin/pg_dump/pg_dump.c | 334 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 28 --- 5 files changed, 23 insertions(+), 359 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index 0e0d53926af..774be23b4f9 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1717,7 +1705,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/connectdb.c b/src/bin/pg_dump/connectdb.c index f3ce8b1cfb1..d145308dccf 100644 --- a/src/bin/pg_dump/connectdb.c +++ b/src/bin/pg_dump/connectdb.c @@ -212,11 +212,11 @@ ConnectDatabase(const char *dbname, const char *connection_string, my_version = PG_VERSION_NUM; /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dump.c.) */ if (my_version != server_version_temp - && (server_version_temp < 90200 || + && (server_version_temp < 100000 || (server_version_temp / 100) > (my_version / 100))) { pg_log_error("aborting because of server version mismatch"); diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index c56437d6057..65bd15ebfd2 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1942,13 +1933,11 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) addObjectDependency(dobj, ext->dobj.dumpId); /* - * In 9.6 and above, mark the member object to have any non-initial ACLs + * Mark the member object to have any non-initial ACLs * dumped. (Any initial ACLs will be removed later, using data from * pg_init_privs, so that we'll dump only the delta from the extension's * initial setup.) * - * Prior to 9.6, we do not include any extension member components. - * * In binary upgrades, we still dump all components of the members * individually, since the idea is to exactly reproduce the database * contents rather than replace the extension contents with something @@ -1964,12 +1953,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1984,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2196,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2213,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3098,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3296,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3638,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4205,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4274,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4489,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4852,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5142,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6630,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6821,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6856,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6938,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6957,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7004,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7252,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7294,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7868,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8154,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8820,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9086,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9313,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10717,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10784,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10958,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11128,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11140,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11148,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13469,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14963,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15372,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15383,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16848,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16872,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19161,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19222,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19414,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index b9653f0aefe..e68937c9934 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -785,17 +785,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -849,7 +843,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -860,27 +853,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --aHl3HfeiUuO3zeNC Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v6-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index b01e74638c4..3fa6cdf3a5e 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --CT89ko5pLUrsvFtH Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v2-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index d56dcc701ce..eed9aaeb7c1 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --6vzYk1swa63ey9i6 Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v3-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
* [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 @ 2026-04-17 17:15 Nathan Bossart <[email protected]> 0 siblings, 0 replies; 471+ messages in thread From: Nathan Bossart @ 2026-04-17 17:15 UTC (permalink / raw) --- doc/src/sgml/ref/pg_dump.sgml | 14 +- doc/src/sgml/runtime.sgml | 2 +- src/bin/pg_dump/pg_dump.c | 330 ++-------------------------------- src/bin/pg_dump/pg_dumpall.c | 32 +--- 4 files changed, 22 insertions(+), 356 deletions(-) diff --git a/doc/src/sgml/ref/pg_dump.sgml b/doc/src/sgml/ref/pg_dump.sgml index ae1bc14d2f2..64a3447e445 100644 --- a/doc/src/sgml/ref/pg_dump.sgml +++ b/doc/src/sgml/ref/pg_dump.sgml @@ -407,18 +407,6 @@ PostgreSQL documentation and there is no way to continue with the dump, so <application>pg_dump</application> has no choice but to abort the dump. </para> - <para> - To perform a parallel dump, the database server needs to support - synchronized snapshots, a feature that was introduced in - <productname>PostgreSQL</productname> 9.2 for primary servers and 10 - for standbys. With this feature, database clients can ensure they see - the same data set even though they use different connections. - <command>pg_dump -j</command> uses multiple database connections; it - connects to the database once with the leader process and once again - for each worker job. Without the synchronized snapshot feature, the - different worker jobs wouldn't be guaranteed to see the same data in - each connection, which could lead to an inconsistent backup. - </para> </listitem> </varlistentry> @@ -1718,7 +1706,7 @@ CREATE DATABASE foo WITH TEMPLATE template0; <productname>PostgreSQL</productname> server versions newer than <application>pg_dump</application>'s version. <application>pg_dump</application> can also dump from <productname>PostgreSQL</productname> servers older than its own version. - (Currently, servers back to version 9.2 are supported.) + (Currently, servers back to version 10 are supported.) However, <application>pg_dump</application> cannot dump from <productname>PostgreSQL</productname> servers newer than its own major version; it will refuse to even try, rather than risk making an invalid dump. diff --git a/doc/src/sgml/runtime.sgml b/doc/src/sgml/runtime.sgml index dfa292c2c3a..d9984910cc4 100644 --- a/doc/src/sgml/runtime.sgml +++ b/doc/src/sgml/runtime.sgml @@ -1776,7 +1776,7 @@ $ <userinput>kill -INT `head -1 /usr/local/pgsql/data/postmaster.pid`</userinput version of <productname>PostgreSQL</productname>, to take advantage of enhancements that might have been made in these programs. Current releases of the - dump programs can read data from any server version back to 9.2. + dump programs can read data from any server version back to 10. </para> <para> diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index a0f7f8e2168..75c27a08540 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -977,10 +977,10 @@ main(int argc, char **argv) /* - * We allow the server to be back to 9.2, and up to any minor release of + * We allow the server to be back to 10, and up to any minor release of * our own major version. (See also version check in pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = numWorkers; @@ -1491,9 +1491,7 @@ setup_connection(Archive *AH, const char *dumpencoding, * Disable timeouts if supported. */ ExecuteSqlStatement(AH, "SET statement_timeout = 0"); - if (AH->remoteVersion >= 90300) ExecuteSqlStatement(AH, "SET lock_timeout = 0"); - if (AH->remoteVersion >= 90600) ExecuteSqlStatement(AH, "SET idle_in_transaction_session_timeout = 0"); if (AH->remoteVersion >= 170000) ExecuteSqlStatement(AH, "SET transaction_timeout = 0"); @@ -1507,13 +1505,10 @@ setup_connection(Archive *AH, const char *dumpencoding, /* * Adjust row-security mode, if supported. */ - if (AH->remoteVersion >= 90500) - { if (dopt->enable_row_security) ExecuteSqlStatement(AH, "SET row_security = on"); else ExecuteSqlStatement(AH, "SET row_security = off"); - } /* * For security reasons, we restrict the expansion of non-system views and @@ -1568,11 +1563,7 @@ setup_connection(Archive *AH, const char *dumpencoding, destroyPQExpBuffer(query); } else if (AH->numWorkers > 1) - { - if (AH->isStandby && AH->remoteVersion < 100000) - pg_fatal("parallel dumps from standby servers are not supported by this server version"); AH->sync_snapshot_id = get_synchronized_snapshot(AH); - } } /* Set up connection for a parallel worker process */ @@ -1964,12 +1955,7 @@ checkExtensionMembership(DumpableObject *dobj, Archive *fout) if (fout->dopt->binary_upgrade) dobj->dump = ext->dobj.dump; else - { - if (fout->remoteVersion < 90600) - dobj->dump = DUMP_COMPONENT_NONE; - else dobj->dump = ext->dobj.dump_contains & (DUMP_COMPONENT_ACL); - } return true; } @@ -2000,11 +1986,10 @@ selectDumpableNamespace(NamespaceInfo *nsinfo, Archive *fout) simple_oid_list_member(&schema_include_oids, nsinfo->dobj.catId.oid) ? DUMP_COMPONENT_ALL : DUMP_COMPONENT_NONE; - else if (fout->remoteVersion >= 90600 && - strcmp(nsinfo->dobj.name, "pg_catalog") == 0) + else if (strcmp(nsinfo->dobj.name, "pg_catalog") == 0) { /* - * In 9.6 and above, we dump out any ACLs defined in pg_catalog, if + * We dump out any ACLs defined in pg_catalog, if * they are interesting (and not the original ACLs which were set at * initdb time, see pg_init_privs). */ @@ -2213,8 +2198,7 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) else { if (plang->dobj.catId.oid <= g_last_builtin_oid) - plang->dobj.dump = fout->remoteVersion < 90600 ? - DUMP_COMPONENT_NONE : DUMP_COMPONENT_ACL; + plang->dobj.dump = DUMP_COMPONENT_ACL; else plang->dobj.dump = DUMP_COMPONENT_ALL; } @@ -2231,13 +2215,6 @@ selectDumpableProcLang(ProcLangInfo *plang, Archive *fout) static void selectDumpableAccessMethod(AccessMethodInfo *method, Archive *fout) { - /* see getAccessMethods() comment about v9.6. */ - if (fout->remoteVersion < 90600) - { - method->dobj.dump = DUMP_COMPONENT_NONE; - return; - } - if (checkExtensionMembership(&method->dobj, fout)) return; /* extension membership overrides all else */ @@ -3123,10 +3100,6 @@ buildMatViewRefreshDependencies(Archive *fout) i_objid, i_refobjid; - /* No Mat Views before 9.3. */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "WITH RECURSIVE w AS " @@ -3325,10 +3298,7 @@ dumpDatabase(Archive *fout) "datcollate, datctype, datfrozenxid, " "datacl, acldefault('d', datdba) AS acldefault, " "datistemplate, datconnlimit, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(dbQry, "datminmxid, "); - else - appendPQExpBufferStr(dbQry, "0 AS datminmxid, "); if (fout->remoteVersion >= 170000) appendPQExpBufferStr(dbQry, "datlocprovider, datlocale, datcollversion, "); else if (fout->remoteVersion >= 150000) @@ -3670,17 +3640,11 @@ dumpDatabase(Archive *fout) ii_oid, ii_relminmxid; - if (fout->remoteVersion >= 90300) appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, relminmxid, relfilenode, oid\n" "FROM pg_catalog.pg_class\n" "WHERE oid IN (%u, %u, %u, %u);\n", LargeObjectRelationId, LargeObjectLOidPNIndexId, LargeObjectMetadataRelationId, LargeObjectMetadataOidIndexId); - else - appendPQExpBuffer(loFrozenQry, "SELECT relfrozenxid, 0 AS relminmxid, relfilenode, oid\n" - "FROM pg_catalog.pg_class\n" - "WHERE oid IN (%u, %u);\n", - LargeObjectRelationId, LargeObjectLOidPNIndexId); lo_res = ExecuteSqlQuery(fout, loFrozenQry->data, PGRES_TUPLES_OK); @@ -4243,10 +4207,6 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - /* No policies before 9.5 */ - if (fout->remoteVersion < 90500) - return; - /* Skip if --no-policies was specified */ if (dopt->no_policies) return; @@ -4316,10 +4276,7 @@ getPolicies(Archive *fout, TableInfo tblinfo[], int numTables) printfPQExpBuffer(query, "SELECT pol.oid, pol.tableoid, pol.polrelid, pol.polname, pol.polcmd, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "pol.polpermissive, "); - else - appendPQExpBufferStr(query, "'t' as polpermissive, "); appendPQExpBuffer(query, "CASE WHEN pol.polroles = '{0}' THEN NULL ELSE " " pg_catalog.array_to_string(ARRAY(SELECT pg_catalog.quote_ident(rolname) from pg_catalog.pg_roles WHERE oid = ANY(pol.polroles)), ', ') END AS polroles, " @@ -4534,7 +4491,7 @@ getPublications(Archive *fout) int i, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -4897,7 +4854,7 @@ getPublicationTables(Archive *fout, TableInfo tblinfo[], int numTables) j, ntups; - if (dopt->no_publications || fout->remoteVersion < 100000) + if (dopt->no_publications) return; query = createPQExpBuffer(); @@ -5187,7 +5144,7 @@ getSubscriptions(Archive *fout) int i, ntups; - if (dopt->no_subscriptions || fout->remoteVersion < 100000) + if (dopt->no_subscriptions) return; if (!is_superuser(fout)) @@ -6675,24 +6632,12 @@ getAccessMethods(Archive *fout) query = createPQExpBuffer(); /* - * Select all access methods from pg_am table. v9.6 introduced CREATE - * ACCESS METHOD, so earlier versions usually have only built-in access - * methods. v9.6 also changed the access method API, replacing dozens of - * pg_am columns with amhandler. Even if a user created an access method - * by "INSERT INTO pg_am", we have no way to translate pre-v9.6 pg_am - * columns to a v9.6+ CREATE ACCESS METHOD. Hence, before v9.6, read - * pg_am just to facilitate findAccessMethodByOid() providing the - * OID-to-name mapping. + * Select all access methods from pg_am table. */ appendPQExpBufferStr(query, "SELECT tableoid, oid, amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "amtype, " "amhandler::pg_catalog.regproc AS amhandler "); - else - appendPQExpBufferStr(query, - "'i'::pg_catalog.\"char\" AS amtype, " - "'-'::pg_catalog.regproc AS amhandler "); appendPQExpBufferStr(query, "FROM pg_am"); res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -6878,15 +6823,12 @@ getAggregates(Archive *fout) int i_proowner; int i_aggacl; int i_acldefault; + const char *agg_check; /* * Find all interesting aggregates. See comment in getFuncs() for the * rationale behind the filtering logic. */ - if (fout->remoteVersion >= 90600) - { - const char *agg_check; - agg_check = (fout->remoteVersion >= 110000 ? "p.prokind = 'a'" : "p.proisagg"); @@ -6916,29 +6858,6 @@ getAggregates(Archive *fout) "refclassid = 'pg_extension'::regclass AND " "deptype = 'e')"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBufferStr(query, "SELECT tableoid, oid, proname AS aggname, " - "pronamespace AS aggnamespace, " - "pronargs, proargtypes, " - "proowner, " - "proacl AS aggacl, " - "acldefault('f', proowner) AS acldefault " - "FROM pg_proc p " - "WHERE proisagg AND (" - "pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')"); - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - " OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7021,6 +6940,7 @@ getFuncs(Archive *fout) int i_prorettype; int i_proacl; int i_acldefault; + const char *not_agg_check; /* * Find all interesting functions. This is a bit complicated: @@ -7039,14 +6959,10 @@ getFuncs(Archive *fout) * include them, since we want to dump extension members individually in * that mode. Also, if they are used by casts or transforms then we need * to gather the information about them, though they won't be dumped if - * they are built-in. Also, in 9.6 and up, include functions in + * they are built-in. Also, include functions in * pg_catalog if they have an ACL different from what's shown in * pg_init_privs (so we have to join to pg_init_privs; annoying). */ - if (fout->remoteVersion >= 90600) - { - const char *not_agg_check; - not_agg_check = (fout->remoteVersion >= 110000 ? "p.prokind <> 'a'" : "NOT p.proisagg"); @@ -7090,46 +7006,6 @@ getFuncs(Archive *fout) appendPQExpBufferStr(query, "\n OR p.proacl IS DISTINCT FROM pip.initprivs"); appendPQExpBufferChar(query, ')'); - } - else - { - appendPQExpBuffer(query, - "SELECT tableoid, oid, proname, prolang, " - "pronargs, proargtypes, prorettype, proacl, " - "acldefault('f', proowner) AS acldefault, " - "pronamespace, " - "proowner " - "FROM pg_proc p " - "WHERE NOT proisagg" - "\n AND NOT EXISTS (SELECT 1 FROM pg_depend " - "WHERE classid = 'pg_proc'::regclass AND " - "objid = p.oid AND deptype = 'i')" - "\n AND (" - "\n pronamespace != " - "(SELECT oid FROM pg_namespace " - "WHERE nspname = 'pg_catalog')" - "\n OR EXISTS (SELECT 1 FROM pg_cast" - "\n WHERE pg_cast.oid > '%u'::oid" - "\n AND p.oid = pg_cast.castfunc)", - g_last_builtin_oid); - - if (fout->remoteVersion >= 90500) - appendPQExpBuffer(query, - "\n OR EXISTS (SELECT 1 FROM pg_transform" - "\n WHERE pg_transform.oid > '%u'::oid" - "\n AND (p.oid = pg_transform.trffromsql" - "\n OR p.oid = pg_transform.trftosql))", - g_last_builtin_oid); - - if (dopt->binary_upgrade) - appendPQExpBufferStr(query, - "\n OR EXISTS(SELECT 1 FROM pg_depend WHERE " - "classid = 'pg_proc'::regclass AND " - "objid = p.oid AND " - "refclassid = 'pg_extension'::regclass AND " - "deptype = 'e')"); - appendPQExpBufferChar(query, ')'); - } res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); @@ -7378,64 +7254,31 @@ getTables(Archive *fout, int *numTables) appendPQExpBufferStr(query, "c.relhasoids, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relispopulated, "); - else - appendPQExpBufferStr(query, - "'t' as relispopulated, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "c.relreplident, "); - else - appendPQExpBufferStr(query, - "'d' AS relreplident, "); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "c.relrowsecurity, c.relforcerowsecurity, "); - else - appendPQExpBufferStr(query, - "false AS relrowsecurity, " - "false AS relforcerowsecurity, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "c.relminmxid, tc.relminmxid AS tminmxid, "); - else - appendPQExpBufferStr(query, - "0 AS relminmxid, 0 AS tminmxid, "); - if (fout->remoteVersion >= 90300) appendPQExpBufferStr(query, "array_remove(array_remove(c.reloptions,'check_option=local'),'check_option=cascaded') AS reloptions, " "CASE WHEN 'check_option=local' = ANY (c.reloptions) THEN 'LOCAL'::text " "WHEN 'check_option=cascaded' = ANY (c.reloptions) THEN 'CASCADED'::text ELSE NULL END AS checkoption, "); - else - appendPQExpBufferStr(query, - "c.reloptions, NULL AS checkoption, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "am.amname, "); - else - appendPQExpBufferStr(query, - "NULL AS amname, "); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "(d.deptype = 'i') IS TRUE AS is_identity_sequence, "); - else - appendPQExpBufferStr(query, - "false AS is_identity_sequence, "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "c.relispartition AS ispartition "); - else - appendPQExpBufferStr(query, - "false AS ispartition "); /* * Left join to pg_depend to pick up dependency info linking sequences to @@ -7453,9 +7296,8 @@ getTables(Archive *fout, int *numTables) "LEFT JOIN pg_tablespace tsp ON (tsp.oid = c.reltablespace)\n"); /* - * In 9.6 and up, left join to pg_am to pick up the amname. + * Left join to pg_am to pick up the amname. */ - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "LEFT JOIN pg_am am ON (c.relam = am.oid)\n"); @@ -8028,12 +7870,8 @@ getIndexes(Archive *fout, TableInfo tblinfo[], int numTables) "t.reloptions AS indreloptions, "); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "i.indisreplident, "); - else - appendPQExpBufferStr(query, - "false AS indisreplident, "); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -8318,10 +8156,6 @@ getExtendedStatistics(Archive *fout) int i_stattarget; int i; - /* Extended statistics were new in v10 */ - if (fout->remoteVersion < 100000) - return; - query = createPQExpBuffer(); if (fout->remoteVersion < 130000) @@ -8988,10 +8822,6 @@ getEventTriggers(Archive *fout) i_evtenabled; int ntups; - /* Before 9.3, there are no event triggers */ - if (fout->remoteVersion < 90300) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, @@ -9258,10 +9088,6 @@ getTransforms(Archive *fout) int i_trffromsql; int i_trftosql; - /* Transforms didn't exist pre-9.5 */ - if (fout->remoteVersion < 90500) - return; - query = createPQExpBuffer(); appendPQExpBufferStr(query, "SELECT tableoid, oid, " @@ -9489,12 +9315,8 @@ getTableAttrs(Archive *fout, TableInfo *tblinfo, int numTables) appendPQExpBufferStr(q, "'' AS attcompression,\n"); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(q, "a.attidentity,\n"); - else - appendPQExpBufferStr(q, - "'' AS attidentity,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(q, @@ -10897,8 +10719,6 @@ getAdditionalACLs(Archive *fout) PQclear(res); /* Fetch initial-privileges data */ - if (fout->remoteVersion >= 90600) - { printfPQExpBuffer(query, "SELECT objoid, classoid, objsubid, privtype, initprivs " "FROM pg_init_privs"); @@ -10966,7 +10786,6 @@ getAdditionalACLs(Archive *fout) } } PQclear(res); - } destroyPQExpBuffer(query); } @@ -11141,15 +10960,6 @@ fetchAttributeStats(Archive *fout) static bool restarted; int max_rels = MAX_ATTR_STATS_RELS; - /* - * Our query for retrieving statistics for multiple relations uses WITH - * ORDINALITY and multi-argument UNNEST(), both of which were introduced - * in v9.4. For older versions, we resort to gathering statistics for a - * single relation at a time. - */ - if (fout->remoteVersion < 90400) - max_rels = 1; - /* If we're just starting, set our TOC pointer. */ if (!te) te = AH->toc->next; @@ -11320,16 +11130,11 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) * The results must be in the order of the relations supplied in the * parameters to ensure we remain in sync as we walk through the TOC. * - * For v9.4 through v18, the redundant filter clause on s.tablename = + * For versions before 19, the redundant filter clause on s.tablename = * ANY(...) seems sufficient to convince the planner to use * pg_class_relname_nsp_index, which avoids a full scan of pg_stats. * In newer versions, pg_stats returns the table OIDs, eliminating the * need for that hack. - * - * Our query for retrieving statistics for multiple relations uses - * WITH ORDINALITY and multi-argument UNNEST(), both of which were - * introduced in v9.4. For older versions, we resort to gathering - * statistics for a single relation at a time. */ if (fout->remoteVersion >= 190000) appendPQExpBufferStr(query, @@ -11337,7 +11142,7 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "JOIN unnest($1) WITH ORDINALITY AS u (tableid, ord) " "ON s.tableid = u.tableid " "ORDER BY u.ord, s.attname, s.inherited"); - else if (fout->remoteVersion >= 90400) + else appendPQExpBufferStr(query, "FROM pg_catalog.pg_stats s " "JOIN unnest($1, $2) WITH ORDINALITY AS u (schemaname, tablename, ord) " @@ -11345,12 +11150,6 @@ dumpRelationStats_dumper(Archive *fout, const void *userArg, const TocEntry *te) "AND s.tablename = u.tablename " "WHERE s.tablename = ANY($2) " "ORDER BY u.ord, s.attname, s.inherited"); - else - appendPQExpBufferStr(query, - "FROM pg_catalog.pg_stats s " - "WHERE s.schemaname = $1[1] " - "AND s.tablename = $2[1] " - "ORDER BY s.attname, s.inherited"); ExecuteSqlStatement(fout, query->data); @@ -13672,19 +13471,11 @@ dumpFunc(Archive *fout, const FuncInfo *finfo) "pg_catalog.pg_get_function_result(p.oid) AS funcresult,\n" "proleakproof,\n"); - if (fout->remoteVersion >= 90500) appendPQExpBufferStr(query, "array_to_string(protrftypes, ' ') AS protrftypes,\n"); - else - appendPQExpBufferStr(query, - "NULL AS protrftypes,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -15174,14 +14965,9 @@ dumpCollation(Archive *fout, const CollInfo *collinfo) /* Get collation-specific details */ appendPQExpBufferStr(query, "SELECT "); - if (fout->remoteVersion >= 100000) appendPQExpBufferStr(query, "collprovider, " "collversion, "); - else - appendPQExpBufferStr(query, - "'c' AS collprovider, " - "NULL AS collversion, "); if (fout->remoteVersion >= 120000) appendPQExpBufferStr(query, @@ -15588,7 +15374,6 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "pg_catalog.pg_get_function_arguments(p.oid) AS funcargs,\n" "pg_catalog.pg_get_function_identity_arguments(p.oid) AS funciargs,\n"); - if (fout->remoteVersion >= 90400) appendPQExpBufferStr(query, "aggkind,\n" "aggmtransfn,\n" @@ -15600,31 +15385,12 @@ dumpAgg(Archive *fout, const AggInfo *agginfo) "aggtransspace,\n" "aggmtransspace,\n" "aggminitval,\n"); - else - appendPQExpBufferStr(query, - "'n' AS aggkind,\n" - "'-' AS aggmtransfn,\n" - "'-' AS aggminvtransfn,\n" - "'-' AS aggmfinalfn,\n" - "0 AS aggmtranstype,\n" - "false AS aggfinalextra,\n" - "false AS aggmfinalextra,\n" - "0 AS aggtransspace,\n" - "0 AS aggmtransspace,\n" - "NULL AS aggminitval,\n"); - if (fout->remoteVersion >= 90600) appendPQExpBufferStr(query, "aggcombinefn,\n" "aggserialfn,\n" "aggdeserialfn,\n" "proparallel,\n"); - else - appendPQExpBufferStr(query, - "'-' AS aggcombinefn,\n" - "'-' AS aggserialfn,\n" - "'-' AS aggdeserialfn,\n" - "'u' AS proparallel,\n"); if (fout->remoteVersion >= 110000) appendPQExpBufferStr(query, @@ -17084,8 +16850,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) appendPQExpBufferStr(query, "PREPARE getColumnACLs(pg_catalog.oid) AS\n"); - if (fout->remoteVersion >= 90600) - { /* * In principle we should call acldefault('c', relowner) to * get the default ACL for a column. However, we don't @@ -17110,17 +16874,6 @@ dumpTable(Archive *fout, const TableInfo *tbinfo) "NOT at.attisdropped " "AND (at.attacl IS NOT NULL OR pip.initprivs IS NOT NULL) " "ORDER BY at.attnum"); - } - else - { - appendPQExpBufferStr(query, - "SELECT attname, attacl, '{}' AS acldefault, " - "NULL AS privtype, NULL AS initprivs " - "FROM pg_catalog.pg_attribute " - "WHERE attrelid = $1 AND NOT attisdropped " - "AND attacl IS NOT NULL " - "ORDER BY attnum"); - } ExecuteSqlStatement(fout, query->data); @@ -19410,16 +19163,10 @@ collectSequences(Archive *fout) const char *query; /* - * Before Postgres 10, sequence metadata is in the sequence itself. With - * some extra effort, we might be able to use the sorted table for those - * versions, but for now it seems unlikely to be worth it. - * * Since version 18, we can gather the sequence data in this query with * pg_get_sequence_data(), but we only do so for non-schema-only dumps. */ - if (fout->remoteVersion < 100000) - return; - else if (fout->remoteVersion < 180000 || + if (fout->remoteVersion < 180000 || (!fout->dopt->dumpData && !fout->dopt->sequence_data)) query = "SELECT seqrelid, format_type(seqtypid, NULL), " "seqstart, seqincrement, " @@ -19477,59 +19224,20 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) PQExpBuffer delqry = createPQExpBuffer(); char *qseqname; TableInfo *owning_tab = NULL; + SequenceItem key = {0}; qseqname = pg_strdup(fmtId(tbinfo->dobj.name)); /* - * For versions >= 10, the sequence information is gathered in a sorted + * The sequence information is gathered in a sorted * table before any calls to dumpSequence(). See collectSequences() for * more information. */ - if (fout->remoteVersion >= 100000) - { - SequenceItem key = {0}; - Assert(sequences); key.oid = tbinfo->dobj.catId.oid; seq = bsearch(&key, sequences, nsequences, sizeof(SequenceItem), SequenceItemCmp); - } - else - { - PGresult *res; - - /* - * Before PostgreSQL 10, sequence metadata is in the sequence itself. - * - * Note: it might seem that 'bigint' potentially needs to be - * schema-qualified, but actually that's a keyword. - */ - appendPQExpBuffer(query, - "SELECT 'bigint' AS sequence_type, " - "start_value, increment_by, max_value, min_value, " - "cache_value, is_cycled FROM %s", - fmtQualifiedDumpable(tbinfo)); - - res = ExecuteSqlQuery(fout, query->data, PGRES_TUPLES_OK); - - if (PQntuples(res) != 1) - pg_fatal(ngettext("query to get data of sequence \"%s\" returned %d row (expected 1)", - "query to get data of sequence \"%s\" returned %d rows (expected 1)", - PQntuples(res)), - tbinfo->dobj.name, PQntuples(res)); - - seq = pg_malloc0_object(SequenceItem); - seq->seqtype = parse_sequence_type(PQgetvalue(res, 0, 0)); - seq->startv = strtoi64(PQgetvalue(res, 0, 1), NULL, 10); - seq->incby = strtoi64(PQgetvalue(res, 0, 2), NULL, 10); - seq->maxv = strtoi64(PQgetvalue(res, 0, 3), NULL, 10); - seq->minv = strtoi64(PQgetvalue(res, 0, 4), NULL, 10); - seq->cache = strtoi64(PQgetvalue(res, 0, 5), NULL, 10); - seq->cycled = (strcmp(PQgetvalue(res, 0, 6), "t") == 0); - - PQclear(res); - } /* Calculate default limits for a sequence of this type */ is_ascending = (seq->incby >= 0); @@ -19708,8 +19416,6 @@ dumpSequence(Archive *fout, const TableInfo *tbinfo) tbinfo->dobj.namespace->dobj.name, tbinfo->rolname, tbinfo->dobj.catId, 0, tbinfo->dobj.dumpId); - if (fout->remoteVersion < 100000) - pg_free(seq); destroyPQExpBuffer(query); destroyPQExpBuffer(delqry); free(qseqname); diff --git a/src/bin/pg_dump/pg_dumpall.c b/src/bin/pg_dump/pg_dumpall.c index c1f43113c53..5b10f7122b7 100644 --- a/src/bin/pg_dump/pg_dumpall.c +++ b/src/bin/pg_dump/pg_dumpall.c @@ -693,11 +693,11 @@ main(int argc, char *argv[]) fout->verbose = verbose; /* - * We allow the server to be back to 9.2, and up to any minor release + * We allow the server to be back to 10, and up to any minor release * of our own major version. (See also version check in * pg_dumpall.c.) */ - fout->minRemoteVersion = 90200; + fout->minRemoteVersion = 100000; fout->maxRemoteVersion = (PG_VERSION_NUM / 100) * 100 + 99; fout->numWorkers = 1; @@ -954,17 +954,11 @@ dropRoles(PGconn *conn) int i_rolname; int i; - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT rolname " "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 1", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT rolname " - "FROM %s " - "ORDER BY 1", role_catalog); res = executeQuery(conn, buf->data); @@ -1041,7 +1035,6 @@ dumpRoles(PGconn *conn) * Notes: rolconfig is dumped later, and pg_authid must be used for * extracting rolcomment regardless of role_catalog. */ - if (server_version >= 90600) printfPQExpBuffer(buf, "SELECT oid, rolname, rolsuper, rolinherit, " "rolcreaterole, rolcreatedb, " @@ -1052,27 +1045,6 @@ dumpRoles(PGconn *conn) "FROM %s " "WHERE rolname !~ '^pg_' " "ORDER BY 2", role_catalog); - else if (server_version >= 90500) - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); - else - printfPQExpBuffer(buf, - "SELECT oid, rolname, rolsuper, rolinherit, " - "rolcreaterole, rolcreatedb, " - "rolcanlogin, rolconnlimit, rolpassword, " - "rolvaliduntil, rolreplication, " - "false as rolbypassrls, " - "pg_catalog.shobj_description(oid, 'pg_authid') as rolcomment, " - "rolname = current_user AS is_current_user " - "FROM %s " - "ORDER BY 2", role_catalog); res = executeQuery(conn, buf->data); -- 2.50.1 (Apple Git-155) --2xrO7hiVfr8aWtYg Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=v4-0002-pg_upgrade-bump-minimum-supported-version-to-v10.patch ^ permalink raw reply [nested|flat] 471+ messages in thread
end of thread, other threads:[~2026-04-17 17:15 UTC | newest] Thread overview: 471+ messages (download: mbox mbox.gz follow: Atom feed) -- links below jump to the message on this page -- 2023-08-07 23:56 [PATCH v1 6/9] ci: windows: Disabling write cache flushing during test Andres Freund <[email protected]> 2023-08-07 23:56 [PATCH v1 6/9] ci: windows: Disabling write cache flushing during test Andres Freund <[email protected]> 2023-08-07 23:56 [PATCH v3 09/10] ci: windows: Disabling write cache flushing during test Andres Freund <[email protected]> 2023-08-07 23:56 [PATCH v3 09/10] ci: windows: Disabling write cache flushing during test Andres Freund <[email protected]> 2023-08-07 23:56 [PATCH v1 6/9] ci: windows: Disabling write cache flushing during test Andres Freund <[email protected]> 2026-04-04 15:16 [PATCH v53 1/7] Introduce an option to make logical replication database specific. Antonin Houska <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v4 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v6 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v3 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v5 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]> 2026-04-17 17:15 [PATCH v2 1/4] pg_dump/pg_dumpall: bump minimum supported version to v10 Nathan Bossart <[email protected]>
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